In this part of my App Inventor video tutorial I make a App Inventor canvas game. The game is a simple paddle ball game.

You’ll learn about image sprites, how App Inventor animation works and all the cool built in features included with AI. With Image Sprite, Ball and Canvas you can make some pretty nice games. I keep everything simple so that it is easy to understand. All of the blocks follow the video below.

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first of all thank you for all whar are you doing for helping others to get through develloping barriers , I learn a lot from
your turorials realy i find theme very helpful .

but my question to day has something to with the comments system like yours, i Have a site web and i want to let the user leave a comment but i want that I can reply the user’s comment singulary in the same box comment ,as you doing now Roni put a comment and you replied him in the same box anf if there’s another commenter he gonne just click the button reply and so on , a discussion grouped by a group of comments , can you help me on that.?
thank you

Hi Derek,
Help me please, with adding lives to pong game…
I’d like to add 3 lives, and when ball touches the bottom, I want to lose 5 points and reduce a live.
Please if you can make a screenshoot of the blocks of how can I make it…
I’ll be thankful if you give me an instruction of doing it…
Thanks